12博

The susceptibility to corrosion limits the application of NdFeB magnets in harsh environments. In this study, CrAlN coating was prepared on NdFeB magnets by means of multi-arc ion plating technology, aiming to enhance their corrosion resistance by optimizing the coating structure. The effect of bias voltage on the microstructure, phase composition and corrosion resistance of CrAlN coatings during the

Developing a strong yet ductile Mg alloy remains a substantial scientific challenge. In this study, ultrasonic severe surface rolling is employed to engineer gradient nanostructure (GNS) within AZ31 Mg alloy sheets with a controllable gradient profile to optimize the strength and ductility. The resulting GNS surface layer significantly deviates from the typical strong-but-brittle nature in conventional

The authors expresses regret!

The design of novel composite nanomaterial structures is critical for developing advanced electrocatalysts. However, obtaining new electrocatalysts that are low-cost, highly active, and stable remains challenging. This paper presents the synthesis of Mo-Ni3S2@NiFe LDH/NF electrocatalysts on nickel foam substrates via a hydrothermal method. The resulting catalysts exhibit a unique three-dimensional

In modern detection technology, the integration of lidar and microwave radar significantly increases the risk of exposure for high-value military equipment. Developing materials with multi-band stealth compatibility is a critical countermeasure to mitigate detection risks. In this study, a brownish-yellow samarium iron oxide material compatible with both 1.06 μm laser stealth and radar stealth was

Fast development of information science and electronic technology, as well as the use of related equipment have been inducing unavoidable electromagnetic wave (EMW) pollution. High performed electromagnetic interference (EMI) shielding composites are required for weakening or resolving such problems. In this study, we aimed to prepare lightweight and porous composites with high EMI effectiveness, especially

NiCo2S4 has garnered significant attention in biochemical analysis as an enzyme mimic due to its peroxidase-like activity. However, its catalytic properties have not been fully explored, limiting its application, particularly in biomedical diagnostics for low-abundance biomolecules. The catalytic activity of nanozymes is closely linked to their interface structure, and sulfur vacancies (SVs) have shown

Lithium?titanium-oxide (Li4Ti5O12, LTO), recognized for its exceptional safety and impressive high-rate specific capacity and outstanding cycling performance as an anode material, has garnered significant interest. The migration rate of Li+ within Li4Ti5O12 plays a vital role in determining its electrochemical characteristics. In contrast to the irregular shape typically seen in Li4Ti5O12, the octahedral

Antimony-based superlattice (SL) interband cascade infrared photodetectors (ICIPs) demonstrate unique advantages in high-speed applications and infrared imaging due to interband transitions and segmented carrier transport properties. However, compared with established mature SL architectures, ICIPs suffer from substantial epitaxial growth challenges induced by higher lattice strain, which critically

Alloys with minimum saturation magnetic induction intensity (Bs) and excellent soft magnetic properties are essential for fluxgate current sensors. This study investigates the effects of Cr doping and isothermal annealing on the magnetic properties and microstructure of (Co0.943Fe0.057)70-xCrxMo2Si16B12 (x = 0, 1, 2, 3, 4?at.%) alloys. In addition, the optimization of composition and process parameters

The rapid development of nanoscience and technology and their applications in biomedicine have brought unprecedented progress in clinical medicine in detection, diagnosis and treatment techniques. Metal halide perovskite (MHP), as a new type of optoelectronic material, has excellent optical properties and outstanding physical properties, which enable it to be easily prepared and flexibly tuned for

Microbial fuel cell (MFC) is a type of bioelectrochemical system that enables green treatment of wastewater by simultaneously degrading pollutants and generating electricity. High-performance anode materials significantly enhance MFC performance. In this paper, we investigate a novel Co3O4 composite Y molecular sieve (Co3O4@Y) anode for its electricity generation and degradation capabilities in aged

In this study, the dielectric and electrical properties of polyvinyl alcohol (PVA) nanocomposites with different concentrations of graphene oxide (GO) were systematically investigated. The results showed that GO doping had a significant effect on the dielectric behavior and charge transport properties of the composites. Among the samples, the nanocomposite with low GO content exhibited the highest

Li-based rechargeable batteries have played a critical role in the sustainable energy development strategy. However, the uncontrolled Li dendrites growth, which causes the poor cycling performance and safety concerns, has become their main drawback. Due to the sealed environment of the battery and the active reactivity of Li metal, in situ studies of Li dendrites are challenging. This work presents

This study systematically investigated the effects of heavy metals on the crystallization kinetics, phase evolution, and crystalline phase formation of blast furnace slag (BFS)-based glass-ceramics. In response to the complex heavy metal pollution systems prevalent in industrial solid waste, this research focused on typical heavy metal contaminants (Cu and Zn). Advanced characterization techniques

This work reported the in-situ fabrication of insulating and corrosion-resistant coatings on the surface of 6061 aluminum alloy using the plasma electrolytic oxidation (PEO) process associated with laser surface melting (LSM) pretreatment and the incorporation of nano-AlN particles. The results show that LSM pretreatment can significantly reduce the large surface pores in the PEO coating and thus enhance

Controlling the crystallization of gallium oxide (Ga2O3) crystal as well as intrinsic defects (oxygen vacancies) are crucial steps in obtaining high-quality material and elucidating how defects affect semiconductor properties. Gallium oxide hydroxide (GaOOH) was firstly synthesized via the reaction of gallium nitrate (Ga(NO3)3) with different alkalis (Urea, NH3·H2O, Na2CO3 and NaOH) using the precipitation

The distribution of catalytic elements in magnesium-based hydrogen storage alloys plays a pivotal role in determining their hydrogen storage performance. In this study, MgNi7.8Y1.7Si0.3 alloys with elevated Mg content and uniformly dispersed secondary phases were successfully synthesized via a synergistic melt spinning (MS) and ball milling (BM) strategy. Post-melt spinning, Ni, Y, and Si elements

Among heavy-metal-free III-V colloidal nanocrystals, Indium antimony (InSb) stands out as a promising candidate for constructing solution-processed broadband photodetectors (PDs) owing to its ultranarrow bandgap and exceptionally high carrier mobility. However, the high affinity of Sb element for oxygen makes InSb susceptible to native surface oxidation, a process that creates barriers to carrier transport

Particle-reinforced CuCrNb composites have considerable significance in the field of heat resistance. In this work, CuCrNb(CCN) alloy, CuCrNb-TiC(CCN-TiC), and CuCrNb-TiC-Ti(CCN-TiC-Ti) composites were fabricated by high-energy ball milling and hot-press sintering. The effects of TiC and Ti on the microstructure and properties of CuCrNb powder metallurgy materials were studied. The results showed that

Magnetic cooling has the potential to replace conventional gas compression refrigeration. Materials such as La(Fe,Si)13 exhibit a sizeable first-order magnetocaloric effect, and it is possible to tailor the phase transition towards room temperature by Mn-H-doping, resulting in a large temperature range for operation. Within this work, we discuss variations of the electronic and lattice structure in

Titanium alSloys with both high strength and good ductility have good application prospects. However, for some common medium-strength near-α titanium alloys, it is difficult to meet the requirements of high-performance applications. Here, we report an effective method of using explosive waves to further strengthen near-α titanium alloys for obtaining high strength and acceptable ductility. A superb

This study systematically investigates the development and optimization of BCY-SDC (BaCe0.8Y0.2O3?δ-Ce0.8Sm0.2O2?δ) composite electrolytes for low-temperature solid oxide fuel cells (SOFCs). Through the controlled synthesis of varying BCY/SDC mass ratios (1:9 to 5:5), the structural, interfacial, and electrochemical properties were comprehensively characterized. The 3BCY-7SDC composite exhibited superior